{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x766efc302f31dde3b9a7ef22e31d4997faf44fe4e0bf8738afa9e08e0cf721fc",
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    "signer": "0x0e779937330E0ebba46F132e8796de9E93042B24",
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}